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nguyenjoyceAug 3, 2025
What to do if Honeywell GPS shows XPNDR TCAS DATA Check?
- MMonique SuttonAug 3, 2025
If the Honeywell GPS displays an XPNDR TCAS DATA Check message, inspect the following: the maximum airspeed program pins, the data bus wires (4), the No. 1 XPNDR DATA BUS Mode S address wires, the suppression coax cable, and the No. 2 XPNDR DATA BUS power wires/circuit breaker.